// updatelink.js
import fs from "fs";
import path from "path";
import * as cheerio from "cheerio";
import axios from "axios";

const appsFile = path.join(process.cwd(), "apps.json");

/*function getShortName($) {
  return (
    $('meta[property="og:site_name"]').attr("content") ||
    $('meta[name="application-name"]').attr("content") ||
    $('meta[property="og:title"]').attr("content") ||
    $("title").text().trim() ||
    null
  );
}
*/
function limitText(str,n) {
  if (!str) return "";
  if (str.length <= n) {
    return str;
  }
  return str.slice(0, n-2) + "..";
}

function getShortName($) {
  const candidates = [
/*    $('meta[property="og:site_name"]').attr("content"),
    $('meta[name="application-name"]').attr("content"),
    $('meta[property="og:title"]').attr("content"),
    $("title").text().trim(),
*/
    $('meta[property="og:site_name"]').attr("content"),
    $('meta[name="application-name"]').attr("content"),
    $('meta[property="og:title"]').attr("content"),
    $('meta[name="apple-mobile-web-app-title"]').attr("content"),
    $('meta[name="twitter:title"]').attr("content"),
    $('meta[name="twitter:site"]').attr("content"),
    $("title").text().trim(),
  ];

  // Filtra solo stringhe non nulle e non vuote
  const valid = candidates.filter(s => s && s.trim().length > 0);

  if (valid.length === 0) return null;

  // Ordina per lunghezza crescente e prende la prima
  valid.sort((a, b) => a.length - b.length);

  return limitText(valid[0],15);
}


function consolelogName($) {
    console.log($('meta[property="og:site_name"]').attr("content"));
    console.log($('meta[name="application-name"]').attr("content"));
    console.log($('meta[property="og:title"]').attr("content"));
    console.log($('meta[name="apple-mobile-web-app-title"]').attr("content"));
    console.log($('meta[name="twitter:title"]').attr("content"));
    console.log($('meta[name="twitter:site"]').attr("content"));
    console.log($("title").text().trim());
}

async function findBestIconAndName(baseUrl) {
  try {
    const res = await axios.get(baseUrl, { timeout: 2000 });
    const $ = cheerio.load(res.data);

    let appName = getShortName($) || null;
    consolelogName($);
    const icons = [];
    $("link[rel*='icon']").each((_, el) => {
      const href = $(el).attr("href");
      const sizes = $(el).attr("sizes") || "";
      if (href) icons.push({ href, sizes });
    });

    icons.sort((a, b) => {
      const sizeA = parseInt(a.sizes.split("x")[0]) || 0;
      const sizeB = parseInt(b.sizes.split("x")[0]) || 0;
      return sizeB - sizeA;
    });

    let chosenIcon;
    if (icons.length > 0) {
      chosenIcon = new URL(icons[0].href, baseUrl).href;
    } else {
      chosenIcon = "./default.png";
    }

    return { name: appName || "no_name", icon: chosenIcon };
  } catch {
    return { name: "no_name", icon: "/icons/error.png" };
  }
}

/**
 * Funzione principale che aggiorna apps.json
 */
export default async function updateLink() {
  const apps = JSON.parse(fs.readFileSync(appsFile, "utf-8"));

  for (const app of apps) {
    if (app.controllato) {
      console.log(`Skip ${app.name} (${app.host}:${app.port}) già controllato`);
      continue;
    }

    const baseUrl = `http://${app.host}:${app.port}`;
    console.log(`Controllo ${baseUrl}...`);

    const result = await findBestIconAndName(baseUrl);

    app.name = result.name;
    app.icon = result.icon;
    app.controllato = true;
  }

  fs.writeFileSync(appsFile, JSON.stringify(apps, null, 2));
  console.log("apps.json aggiornato ✅");
}